Quiz

here's a quiz for you:
if you can answer this 1 question, a prize awaits!

if

positu = positive

negatu = negative

derivatu = derivative

then,
resu = ___

you may submit your answers at the comment box.

hint: imagine or remember our bloved lecturers i.e. faiz (DE), murugesan (Sepro), whichever lecturer from india la.